Sawing-machine.



No. 840,814 PATENTED JAN. 1, 1907.

S. J. GRAY & J HORNING.

SAWING MACHINE. APPLIQA ION FILED MAR. 20,1906.

4 SHEBTS-SHEET 1.

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c. z, JGM' ATTORNEYS PATEN'TED JAN. 1, 1907 S, J. GRAY (Ya J. HORNING.

SAWING MACHINE. APPLICATION FILED MAR. 20,1906.

4 SHEETS-SHEET 3.

WITNESSES." 496x44 C? a. Z

Arm/Mfrs I SAWING M AGHIN E. APPLIOAQION FILED MAR 20,1906- 4SHEETS-SHEET 4.

To all whom: it ma-y concern:

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SIMON J. GRAY AND JOHN HORNING, F OAKLAND, CALIFORNIA.

' serene-MACHINE.

Specification of Letters Patent.

Patented J an. 1, 1907'.

Application filed March 20, 1906. Serial No. 306.993.

Be it known that we, SIMON J. Gitay and JOHN Horuvme, citizens of theUnited States, and residents of Oakland, in the county of Alameda andState of California, have made certain new and useful Improvements inSawing-lt'iachines, of whiohthe following is a specification.

"constructions and combinations of Our invention is an improvement insawing-machines and it consists in certain novel parts here inafterdescribed and claimed.

- In the drawings, Figure 1 a front view of our improved machine inposition for sawing down atree. Fig. 2 is a plan view of the same. Fig.3 is a side view. Fig. 4 1s a side view showing the machine arranged foran 1 upwardly-inclined cut. Fig. 5 18 a similar I view showing theposition-for sawing close to through the clutching mechanism. a-detailofone of the'channel-plates.

attachment to the tree.

tical section through the plate for attachinent to the tree.

Fig. 11 is a front view of a inodi'liedl'orin of angle-bar andchannel-plate.

.Fig- 1121's a perspectiveview of the angle-bar alone. Fig. 13 isalongitudinal section the split ring and the channel-plate connectedtherewith.

In the practical application ol our invention we provide a plurality ofbars A, upon which are mounted channel plates or braclc ets B, theflanges 0 of the channel-plates being inturned to engage flanges (L onthe sides of the bars A. I

The channel plates or brackets B are provided with lugs I), havingscrew'threaded openings, and the openings are traversed byscrew-threaded rods '12, journaled in bearings b at each end of thebars. One of the rods 1) is provided with a handle I), and each of therods is provided at its outer end with a bevel-gear meshing withbevel-gears ('2 upon the ends of a telescoping rod 1), having and lowerplates connected by trusses e, is

journaled' upon the stud-shafts, the outer ends of the frames beingconnected to each.

other by a bolt 0, upon which is journaled a grooved pulley c. Groovedpulleys c are jOlllllil-lGCl upon the stud-shafts, and an end- 7 lesssaw H is supported by the pulleys c c. A drivingpulley c is journaledupon one of the stud-shafts, said driving-pulley being movablelongitudinally of the shaft; and providcd withone part of afriction-clutch 0 the otherpart of the clutch being on the groovedpulley on the same shaft. The studshait bearing the driving-pulley isextended upwardly, and a bracket is secured to said extended end by aset-screw c". A sliding sleeve 0" is integral with the driving-pulley 0.upon the shaft and is forced into contact with the grooved pulley toconnect the clutch parts by means of a lever 0 pivoted to the bracketand to a collar 0*, engaging the end of v the sleeve. it will be evidentfrom the description that the frame for supporting the saw may bedescribed as having a recess for receiving the object'to be sawedand'that one run of the saw extends across said recess.

Means are provided for supporting the bars A, comprising angle-bars l),the upper legs d of the angle-bars being engaged by split rings at,having cars (1 traversed by bolts (1, whereby to tighten the rings uponthe angle-bars, and having swiveled thereto channel-plates (1", similarto the channehplate B, before described, the channel-plates d beingprovided with inturned flanges d", engag- 111g llanges b upon the loweredges of the bars.

' The lower legs d of the angle-bars are engaged by split rings (Zhaving cars (i trav ersed by bolts (1, and having upon, the oppositeside from the cars a lug d the said lug being received between spacedearsc upon a block E, the ears and the bolts being trav ersed by a bolte, whereby to tighten the ears upon the lug to prevent motion of thesplit ring with respect to the block.-

The block E is provided with a cylindrical body a engaging a circularrecess 9 in a plate G, the body being retained in the recess by a flangeg, and a set-screw g traverses the block and engages the cylindricalbody, whereby to fix the block with respect to the plate. The plate G isprovided with dogs 51, pivoted thereto and extending upon'1o either sidethereof for engaging the object to' be sawed, and with perforations gada ted for the passage of drift-boltsv 9 used or a I similar purpose.

plates G at such'position-as to bring thesaw to the required anglewithrespectto the object to be sawed. The bars'A are then adj'usted uponthe upper legs of the angle bars at a suitable distance from the tree orother ob ect. By means ofthe handle I) u on the screw-threaded rod t therun of t e saw nearest the tree is moved into position thereagainst,after which the driving-pulley is clutched to the'groov'ed pulley.

The telescoping rod b comprises two mem 'bers 6 6 connected by a sleeveb each of said members 6 I) bein provided with a key I), moving'n-agroove 5 of the sleeve. This arrangement allows the plates A to movetoward and-from each other to provide for different-sized objects, andthe provision of the frames c permits the grooved pulleys upon thestud-shafts to move toward and from each other, while at the same timeretainin the saw in a taut condition.

the screw-threaded rod bear-in the handle b through its connection witht e telescoping rod rotates theiother rod 1), thus movingthegroovedfpulleys in unison, whereby tO-feed the saw.

Any preferred form of endless saw maybe used with our improvedsawing-machine, and in the present instance wehave shown'a link saw H",comprising a plurality of links 71 pivotally connected, as at 71,, andprovided upon their outer faces with the teeth h.

Our improved sawing-machine is easily transported from place to placeand is supported directly by the object to be sawed, thus dispensingwith considerable weight. It may be positioned to cut at an angle upwardor downward or may be reversed upon the plates G when it is desired tosaw close to the roots of a tree. Any suitable means may be usedforimparting motion to the driving.- pulley c.

The framee mi ht be described as comprising legs pivotally connected andhaving the saw-su porting'pulleys journaled in the free ends 0 the legsand at the point of pivotal connection, the space between the legs beingthe recess into which is received the object to be sawed.

In Figs. 11 and 12 We have shown a modified form of the angle-bar andthe channelplate for supporting the saw-carrying bars,-

in which the angle-bar l) is forked at (Z and provided with two angulararms d (1". Two split rings (1 d engage the arms, the said The rotationo rings bein -secured'to the channel-plate in any suitab e manner.Theabove-described' form is preferable in some respects, since it formsa wider base-support for the bar A. Having thus described our invention,what we claim as new, .ters Patent, i s. p a

1. In a sawing-machine, the combination of a plurality of s aced bars,brackets slidably mounted on't ie bars, and provided'with lugs havingscrew-threaded openings, screwthreaded rods j'ournaled on the bars andengaging'the openings in the lugs, bevel-gears on the rods at one endthereof, a telescoping rod havin one" end j our naled upon each bar andprovided with a bevel-gear meshing with the bevel-gears on thescrew-threaded rods,

stud-shaftsjournaled on the brackets, an A- shaped frame comprisingpairs ofspaced plates, one endof, each pair being journaled upon'astud-shaft, and :the' otherend overand desire to secure by Letlapping.the corresponding end of the other pair, a bolt traversing theoverlapping ends, a grooved pulley journaled on the bolt, groovedpulleys journaled on the stud-shafts, an endless saw supported 'by thepulleys, a .drivingpulley on one of the stud-shafts, clutchmechanismfor; connecting the driving-pulley with the grooved pulley,means for'supporting each' of the bars, and means for attachingsaid'supporting means to the object'to besawed,

2 In a sawing-machine, the combination with a-frame comprising legspivotally con- 'nected, at '--one end, grooved pulleys journaledin thefree endsof the legs, and at the point of pivotal connection, an endlesssaw supported on the pulleys, bars for supporting the free ends of thelegs, means/for adjusting the legs on the bars, an angle-bar having oneleg adjustably connected with; the supporting-bar, a block adjustablyconnected with the other leg of the angle-bar, a plate having dogspivoted thereto and adapted to engage the object to be sawed, a swivelconnection between the block and the plate, and means for fixing theblock with respect to the plate.

3.111 a sawing-machine, the combination of a frame comprising pairs ofspaced plates, a bolt connecting thepairs at one end of the plates,grooved 'ulleys journaled between the plates at the f ee'ends thereofand on the bolt, bars for supporting-the free ends of the pairs,me'ans'for adjusting the said free ends in unison on the bars, anendless saw sup-v ported by the pulleys, means for attaching the bars tothe object to be sawed, and means for adjusting the bars with respect tothe attaching means.

4. In a sawing-machine, the combination of an A-fra1ne, the legs thereofbeing pivotally connected, grooved pulleys j ournaled at the corners ofthe frame, .bars connected with the legs of the frame, means foradjusting said legs in unison on the bars, means conneeted with the barsfor engaging the objects to bra-sawed, and means for adjusting the barson the engaging means, an endless saw supported by the pulleys, andmeans for driving one of the pulleys.

, In a sawing-machine the combination With a frame comprising legspivotallycon nested at one end, grooved pulleys journaled in the freeends of the legs, and at'the'point of pivotal connect-ion, an endlesssaw supported on the pulleys, angle-bars having one leg conneeted with aleg of the frame, means for adjusting the legs of the framelongitudinally of the legs of the angle-bars, means for adjusting theframe transversely of the anglebars, said frame being rotatable upon theangle-bars, means on the other legsoi the an.- gle-bars for engagingtheobjeot to be sawed, and means for adjusting the angle bars on theengaging means. V

6. In a sawing-machine, a frame comprising pivotally-conneeted legs,grooved pulleys, journaled in the free ends ofthe legs and at the pointof connection, an endless saw supported on the pulleys, means fordriving one of the pulleys, bars forengaging opposite sides of theobject "to be sawed, and connected with the free ends of the egs, and 4means for adjusting the frame with respect to the bars;

7. In a sawing-machine, the combination with a frame, comprising legspivotally connected at one end, pulleys journaled in the free ends ofthe legs and at their point of connection, an endless saw supported onthe pulleys, means engaging one of the pulleys for driving the saw,means for. engaging opposite sides of the objects to be sawed, and meanswhereby to adjust the frame with respeot to the said engaging means.

8. In a sawing-machine, the combination with a frame comprising legspivotally eon neeted at one end, pulleys journaled at the corners of theframe, an endless saw supported on the pulleys, moans engaging one ofthe pulleys for driving the saw, means for engaging opposite sides ofthe object to be sawed and means for adjustably connecting the firesends of the legs with said engaging means.

SIMON J. GRAY.

JOHN HORNING'.

l/Vitnesses Joi-m T. BELL, ALBERT F. CONNETT;

